Elife XB-68 Full-range all-round Multi Detector Wireless RF Camera Bug Detector Tracer Hidden Camera Finder With automatic detection, the host to carry, at risk when there is eavesdropping devices, pin hole cameras, casino ye lie. . . . . . Host will prompt your body automatically detects the danger With a signal strength indicator, to quickly find the source of the signal The sensitivity adjustment potentiometer can be adjusted (increased sensitivity to widen the detection range or lower sensitivity to shorten the detection range) radio power at faster to find 1.2G 2.4G 100MHZ-3000MHZ full-frequency detection Power by 2 x AAA battery (Not Included)